so far the only screw ups iv seen are in that one map (cant remember the name, its the one thats in the sun, not the sub one) i saw a guy walk trough a wall, a guy with his head sticking out of the ground. overall i love the 2 maps except i keep getting lost cry:
Malta. The texture-glitches will probably always exist, until developers start making floors/walls 2 feet thick. This is just caused by the players model "Rubbing up" against a wall/floor. As for walking though a wall, dunno.